WO2017166530A1

WO2017166530A1 - Screen brightness adjustment method and device, and display device comprising device

Info

Publication number: WO2017166530A1
Application number: PCT/CN2016/089560
Authority: WO
Inventors: 马宁; 张晓欣
Original assignee: 乐视控股（北京）有限公司; 乐视移动智能信息技术（北京）有限公司
Priority date: 2016-03-28
Filing date: 2016-07-10
Publication date: 2017-10-05
Also published as: CN105825837A

Abstract

A screen brightness adjustment method, a screen brightness adjustment device, and a display device comprising the screen brightness adjustment device. The brightness of the screen can be directly adjusted according to the eye comfort level, so as to achieve the objective of protecting the eyes. The screen brightness adjustment method comprises: detecting the size of each pupil of a user; and adjusting the brightness of a screen according to the sizes of the pupils, so that the adjusted brightness falls within the range in which eyes of a person feel comfortable.

Description

Screen brightness adjustment method, device and display device including the same

The present application claims the priority of the Chinese Patent Application, the entire disclosure of which is hereby incorporated by reference.

Technical field

The present patent application relates to the field of display technologies, and in particular, to a screen brightness adjustment method, a screen brightness adjustment device, and a display device including the screen brightness adjustment device.

Background technique

With the development of society, the advancement of technology, smartphones and tablets, etc. are becoming more and more common, people's lives are increasingly inseparable from all kinds of terminal products containing display devices, and the time of using these terminal products daily is also Gradually increase. Long-term use of the eye itself is likely to cause visual fatigue. When you focus on the screen of the mobile phone, the constantly changing light and shadow on the screen will continue to stimulate the eyes. When the eyes keep capturing these light and shadow, the eyes will be particularly tired. . Especially when the surrounding environment is dark, and the screen of the mobile phone is bright, the damage to the eyes is particularly large, and in the long run, problems such as decreased vision and deeper myopia may be caused.

In order to avoid the irritation and damage of the brightness of the screen of the mobile phone when the ambient light is dark, the smart phone is equipped with a scheme for automatically adjusting the brightness of the screen, which can be based on the intensity of the external light source sensed by the brightness sensor (for example, the environment) Light intensity) automatically adjusts the brightness of the screen to achieve the purpose of adapting the brightness of the screen to the intensity of the ambient light, thereby reducing the damage to the human eye caused by the over-brightness of the screen of the mobile phone in a darker environment.

However, in fact, each person's eyes have different adaptability to different light intensities. If a uniform ambient light intensity is used to automatically adjust the brightness of the screen, some people may benefit. In this adjustment mode, the eyes are effectively protected, while others with different light intensity adaptability may not be able to effectively protect their eyes or even be hurt.

Summary of the invention

In order to solve the above-mentioned existing automatic adjustment screen brightness scheme and not effectively adapt to the defects of all users, the present invention provides a screen brightness adjustment method, a screen brightness adjustment device, and a display device including the screen brightness adjustment device, which can be directly Adjust the brightness of the screen according to eye comfort to achieve eye protection.

With the above technical solution, some embodiments of the present invention provide a screen brightness adjustment method, the method comprising: detecting a pupil size of a user; and adjusting a brightness of the screen according to the pupil size, so that the adjusted brightness In the comfort zone of the human eye.

In one embodiment, the adjusting the brightness of the screen according to the pupil size may include: comparing the pupil size with a pupil size conversion range table, wherein the pupil size conversion range table stores brightness and a human eye Corresponding relationship between the pupil sizes at the brightness; determining whether the brightness corresponding to the pupil size is within the comfort range of the human eye; adjusting the screen if the brightness is not within the comfort range of the human eye The brightness is such that the adjusted brightness is in the comfort range of the human eye.

In one embodiment, adjusting the brightness of the screen if the brightness is not within the comfort range of the human eye may include determining whether the brightness is too dark or too bright; and if the brightness is too dark Increasing the brightness of the screen until the brightness corresponding to the detected pupil size is within the comfort range of the human eye; or in the case where the brightness is too bright, reducing the brightness of the screen until the detected The brightness corresponding to the pupil size is within the comfort range of the human eye.

In one embodiment, after adjusting the brightness of the screen, the method may further include: receiving an instruction by the user to adjust the brightness of the screen; and adjusting the brightness of the screen according to the instruction of the user to adjust the brightness of the screen.

In one embodiment, the method may further include associating and storing the screen brightness after the adjustment according to the user adjusting the brightness of the screen with the initially detected pupil size.

In one embodiment, the adjusting the screen brightness according to the pupil size may include adjusting a brightness of the screen to the association if the detected pupil size is the same as the associated stored pupil size Stored screen brightness.

Correspondingly, the present invention further provides a screen brightness adjusting device, the device comprising: an iris recognition device for detecting a pupil size of a user; and brightness adjusting means for adjusting brightness of the screen according to the pupil size, So that the adjusted brightness is in the comfort range of the human eye.

In one embodiment, after adjusting the brightness of the screen, the brightness adjustment device may further perform an operation of: receiving an instruction that the user adjusts the brightness of the screen; and adjusting the brightness of the screen according to an instruction of the user to adjust the brightness of the screen. .

In one embodiment, the screen brightness adjustment device may further include: an associating storage device for associating and storing the screen brightness after the instruction adjustment according to the user adjusting the screen brightness with the initially detected pupil size.

Accordingly, the present invention also provides a display device comprising the above-described screen brightness adjustment device.

The invention can scan the iris of the human eye by the iris technology, determine the pupil size, and adjust the brightness of the screen according to the characteristics of the pupil strong light reduction and the weak light, so that the screen brightness satisfies the requirements of the human eye comfort. Because the pupil is more sensitive to light, the screen brightness is very accurate. The invention can be adapted to people with different light intensity adaptability, so that they can all benefit from the screen brightness adjustment scheme of the present invention to ensure eye comfort when facing the screen of the terminal device.

Other features and advantages of the invention will be described in detail in the detailed description which follows.

DRAWINGS

The drawings are intended to provide a further understanding of the invention, and are intended to be a In the drawing:

FIG. 1 is a flowchart of a screen brightness adjustment method according to an embodiment of the present invention;

2 is a flowchart of an embodiment of a screen brightness adjustment method provided by the present invention;

3 is a flowchart of another embodiment of a screen brightness adjustment method provided by the present invention;

FIG. 4 is a schematic structural diagram of a screen brightness adjusting device according to an embodiment of the present invention.

Description of the reference numerals

10 iris recognition device 20 brightness adjustment device

30 associated storage

detailed description

The specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It is to be understood that the specific embodiments described herein are merely illustrative and not restrictive.

Before the detailed description of the specific embodiments of the invention, some common knowledge about the pupils involved in the present invention will be introduced. The pupil is a small round hole in the center of the iris in the human eye, which is the passage of light into the eye. The expansion and contraction of the smooth muscle on the iris can reduce or enlarge the diameter of the pupil, thereby controlling the amount of light entering the pupil. In general, the pupil diameter of the human eye can be varied between 1.5 and 8.0 mm. Assuming that the person enters the dark room from the light, the diameter of the pupil can be increased by 5 times, and the light receiving area of the pupil is increased by 25 times, thereby ensuring that the amount of light entering the pupil meets the visual needs of the person. It can be seen that the change in pupil size has a relatively constant amount of light that enters the eye under different illumination conditions. The present invention is made in accordance with the correspondence between the size of the pupil and the brightness, so that the requirement that the brightness of the screen can satisfy the comfort of the human eye can be adjusted accordingly.

FIG. 1 is a flowchart of a method for adjusting a brightness of a screen according to an embodiment of the present invention. As shown in FIG. 1, the present invention provides a screen brightness adjusting method, the method comprising: detecting a pupil size of a user; and adjusting a brightness of the screen according to the pupil size (for example, a pupil diameter), so that the The adjusted brightness is in the comfort zone of the human eye.

Specifically, the adjusting the brightness of the screen according to the pupil size may include: comparing the pupil size with a pupil size conversion range table, wherein the pupil size conversion range table stores brightness and a human eye in the Corresponding relationship between the pupil sizes under the brightness; determining whether the brightness corresponding to the pupil size is within the comfort range of the human eye; adjusting the brightness of the screen if the brightness is not within the comfort range of the human eye, So that the adjusted brightness is in the comfort range of the human eye. It should be noted that the brightness stored in the pupil size conversion range table is not completely equivalent to the screen brightness, but the brightness directly faced by the human eye (there may also be ambient light and the like), and the human eye. The pupil size at this brightness may be taken by a plurality of people for the pupil size at the brightness Mean. Of course, the brightness stored in the pupil size conversion range table and the pupil size of the human eye under the brightness may not be a specific single value, but a range, for example, a brightness range and a pupil size corresponding to each other.

For example, the pupil size conversion range table may store the following contents:

(LIGHT1, M1),

(LIGHT2, M2),

(LIGHT3, M3),

...,

(LIGHTn, M4),

Among them, LIGHT1, LIGHT2, LIGHT3, ..., LIGHTn indicate different brightness or brightness range, M1, M2, M3, ..., Mn respectively indicate the pupil size of the human eye in the case of brightness LIGHT1, LIGHT2, LIGHT3, ..., LIGHTn The pupil size can be an average of the pupil size of different people at the corresponding brightness, and can also be a pupil size range. The human eye comfort range refers to a state in which the human eye is in a more comfortable state in the face of the brightness of the range, and the human eye comfort range can be obtained by testing and investigating a plurality of different people.

FIG. 2 is a flowchart of an embodiment of a screen brightness adjustment method according to an embodiment of the present invention. As shown in FIG. 2, adjusting the brightness of the screen when the brightness is not within the comfortable range of the human eye may include: determining whether the brightness is too dark or too bright, for example, determining that the brightness corresponding to the current pupil size is The lower limit of the comfort range below the human eye is still higher than the upper limit of the comfort range of the human eye. In the case that the brightness corresponding to the current pupil size is lower than the lower limit of the comfortable range of the human eye, it can be determined that the brightness is too dark, at which time the brightness of the screen can be increased, and the pupil is continuously detected during the increase of the screen brightness. The brightness corresponding to the size of the pupil is determined, and the operation of increasing the brightness continues until the brightness corresponding to the detected pupil size is within the comfortable range of the human eye. In the case where the brightness corresponding to the current pupil size is higher than the upper limit of the comfort range of the human eye, it can be determined that the brightness is too bright, at which time the brightness of the screen can be reduced, and the brightness is continuously detected during the reduction of the screen brightness. The aperture size determines the brightness corresponding to the pupil size, and the brightness reduction operation continues until the brightness corresponding to the detected pupil size is within the comfort range of the human eye.

Taking the user's use of the mobile phone in a dark environment, for example, the user's pupil will become larger in the dark environment to absorb more light, and if the user turns to watch the mobile phone screen at this time, the pupil It will shrink sharply and the pupil size will become smaller. Therefore, in this case, the average user will feel that the light emitted by the screen of the mobile phone is stronger and more glaring. At this time, whether the brightness corresponding to the pupil size is in the comfort range of the human eye can be judged according to the reduced pupil size. In the case that the brightness corresponding to the pupil size is higher than the upper limit of the comfortable range of the human eye, it can be determined that the brightness is too bright, at which time the brightness of the screen can be reduced, and the pupil size is continuously detected and the length is determined during the reduction of the screen brightness. The brightness corresponding to the pupil size continues, and the operation of reducing the brightness continues until the brightness corresponding to the detected pupil size is within the comfort range of the human eye. Thereby, the user's experience of using the mobile phone in a dark environment can be improved, and the stimulation of the mobile phone to the eyes can be reduced. The control method adopted by the user in using the mobile phone under strong ambient light is similar, except that it increases the screen brightness until the brightness corresponding to the detected pupil size is within the comfortable range of the human eye. .

After adjusting the screen brightness by the above scheme, the user may further fine tune the screen brightness to achieve better comfort. FIG. 3 is a flowchart of another embodiment of a screen brightness adjustment method according to an embodiment of the present invention. As shown in FIG. 3, in one example, the method may further include: receiving an instruction by the user to adjust the brightness of the screen; and adjusting the brightness of the screen according to the instruction of the user to adjust the brightness of the screen. After the user adjusts the brightness of the screen, the screen brightness after the adjustment according to the user's adjustment of the screen brightness may be associated with the initially detected pupil size and stored. In this way, the next time the user is in a similar environment, the detected pupil size can be directly compared with the associated stored pupil size, and in the case that the detected pupil size is one of the associated stored pupil sizes, The screen brightness corresponding to the pupil size stored in the association is taken, and the brightness of the screen is adjusted to the corresponding associated screen brightness. Thereby, the brightness adjustment speed of the screen can be further improved, and the brightness of the adjusted screen can be further improved. Can meet the individual needs of the user.

FIG. 4 is a schematic structural diagram of a screen brightness adjusting device according to an embodiment of the present invention. Correspondingly, as shown in FIG. 4, the present invention further provides a screen brightness adjusting device, the device comprising: an iris recognition device 10 for detecting a pupil size of a user; and a brightness adjusting device 20 for determining a size according to the pupil Adjusting the brightness of the screen such that the adjusted brightness is in the comfort range of the human eye.

In an example, the adjusting the brightness of the screen according to the pupil size may include: comparing the pupil size with a pupil size conversion range table, wherein the pupil size conversion range table stores brightness and a human eye. Corresponding relationship between the pupil sizes under the brightness; determining whether the brightness corresponding to the pupil size is within the comfort range of the human eye; adjusting the brightness of the screen if the brightness is not within the comfort range of the human eye So that the adjusted brightness is in the comfort range of the human eye.

In one example, adjusting the brightness of the screen if the brightness is not within the comfort range of the human eye may include determining whether the brightness is too dark or too bright; and in the case where the brightness is too dark, Increasing the brightness of the screen until the brightness corresponding to the detected pupil size is within the comfort range of the human eye; or in the case where the brightness is too bright, reducing the brightness of the screen until the detected The brightness corresponding to the pupil size is within the comfort range of the human eye.

In one example, after adjusting the brightness of the screen, the brightness adjustment device 20 may further perform an operation of: receiving an instruction for the user to adjust the brightness of the screen; and adjusting the brightness of the screen according to an instruction of the user to adjust the brightness of the screen. .

In one example, the screen brightness adjustment device may further include an associative storage device 30 for associating and storing the screen brightness after the instruction adjustment according to the user's adjustment of the screen brightness with the initially detected pupil size. In this case, the brightness adjustment device 20 can directly adjust the brightness of the screen to the associated storage if the detected pupil size is the same as the pupil size stored in the associated storage device 30. Screen brightness, which can be used to raise the screen The brightness adjusts the speed, and can make the adjusted screen brightness more suitable for the user's individual needs.

For specific details and benefits of the screen brightness adjusting device provided by the present invention, reference may be made to the above description of the screen brightness adjusting method provided by the present invention, and details are not described herein again.

Accordingly, the present invention also provides a display device comprising the above-described screen brightness adjustment device. The display device can cover devices with display functions commonly found in the art, such as mobile phones, notebook computers, computers, IPADs, televisions, and the like.

Through the embodiment of the invention, the adjusted screen brightness can meet the comfort requirements of different human eyes, and the screen brightness is very accurate due to the high sensitivity of the pupil to the light. The invention can be adapted to people with different light intensity adaptability, so that they can all benefit from the screen brightness adjustment scheme of the present invention to ensure eye comfort when facing the screen of the terminal device.

The preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the specific details of the embodiments described above, and various modifications may be made to the technical solutions of the present invention within the scope of the technical idea of the present invention. These simple variations are within the scope of the invention.

It should be further noted that the specific technical features described in the above specific embodiments may be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the present invention will not be further described in various possible combinations.

In addition, any combination of various embodiments of the invention may be made as long as it does not deviate from the idea of the invention, and it should be regarded as the disclosure of the invention.

Claims

A screen brightness adjustment method, the method comprising:

Detecting the user's pupil size;

According to the pupil size, the brightness of the screen is adjusted such that the adjusted brightness is in the comfort range of the human eye.
The method of claim 1, wherein the adjusting the screen brightness according to the pupil size comprises:

Comparing the pupil size with the pupil size conversion range table, wherein the pupil size conversion range table stores a correspondence between the brightness and the pupil size of the human eye under the brightness;

Determining whether the brightness corresponding to the pupil size is within a comfortable range of the human eye;

In the case where the brightness is not within the comfort range of the human eye, the brightness of the screen is adjusted such that the adjusted brightness is in the comfort range of the human eye.
The method according to claim 1 or 2, wherein adjusting the brightness of the screen if the brightness is not within the comfort range of the human eye comprises:

Determining whether the brightness is too dark or too bright;

In the case where the brightness is too dark, increase the brightness of the screen until the brightness corresponding to the detected pupil size is within the comfortable range of the human eye; or

In the case where the brightness is too bright, the brightness of the screen is reduced until the brightness corresponding to the detected pupil size is within the comfort range of the human eye.
The method according to any one of claims 1 to 3, wherein after adjusting the brightness of the screen, the method further comprises:

Receiving an instruction by a user to adjust the brightness of the screen;

The brightness of the screen is adjusted in accordance with an instruction by the user to adjust the brightness of the screen.
The method according to any one of claims 1 to 4, wherein the method further comprises:

The screen brightness after the adjustment according to the user's adjustment of the screen brightness is associated with the initially detected pupil size and stored.
The method according to any one of claims 1 to 5, wherein the adjusting the screen brightness according to the pupil size comprises:

In the case where the detected pupil size is the same as the associated stored pupil size, the brightness of the screen is adjusted to the associated stored screen brightness.
A screen brightness adjusting device, the device comprising:

An iris recognition device for detecting a pupil size of a user;

The brightness adjusting device is configured to adjust the brightness of the screen according to the pupil size, so that the adjusted brightness is in a comfortable range of the human eye.
The apparatus according to claim 7, wherein said adjusting said screen brightness according to said pupil size comprises:

Comparing the pupil size with the pupil size conversion range table, wherein the pupil size conversion range table stores a correspondence between the brightness and the pupil size of the human eye under the brightness;

Determining whether the brightness corresponding to the pupil size is within a comfortable range of the human eye;

In the case where the brightness is not within the comfort range of the human eye, the brightness of the screen is adjusted such that the adjusted brightness is in the comfort range of the human eye.
The apparatus according to claim 7 or 8, wherein adjusting the brightness of the screen in a case where the brightness is not within a comfort range of a human eye comprises:

Determining whether the brightness is too dark or too bright;

In the case where the brightness is too dark, increase the brightness of the screen until the brightness corresponding to the detected pupil size is within the comfortable range of the human eye; or

In the case where the brightness is too bright, the brightness of the screen is reduced until the brightness corresponding to the detected pupil size is within the comfort range of the human eye.
The apparatus according to any one of claims 7-9, wherein after adjusting the brightness of the screen, the brightness adjustment means further performs the following operations:

Receiving an instruction by a user to adjust the brightness of the screen;

The brightness of the screen is adjusted in accordance with an instruction by the user to adjust the brightness of the screen.
The device according to any one of claims 7 to 10, wherein the device further comprises:

The associating storage device is configured to associate and store the screen brightness after the instruction according to the user adjusting the brightness of the screen with the initially detected pupil size.
The apparatus according to any one of claims 7-11, wherein the adjusting the screen brightness according to the pupil size comprises:

In the case where the detected pupil size is the same as the associated stored pupil size, the brightness of the screen is adjusted to the associated stored screen brightness.
A display device, wherein the display device comprises a screen brightness adjusting device according to any one of claims 7-12.